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Finding the Fourth Proportional to 8,583.70, 12,874.74 and 2,740.36

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Solution

The fourth proportional to 8,583.70, 12,874.74 and 2,740.36 is: 4,110.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,583.70 : 12,874.74 = 2,740.36 : x
  2. Step 2: Convert to fraction form
    8,583.70/12,874.74 = 2,740.36/x
  3. Step 3: Cross multiply
    8,583.70x = 12,874.74 × 2,740.36
  4. Step 4: Simplify right side
    8,583.70x = 35,281,422.51
  5. Step 5: Solve for x
    x = 35,281,422.51/8,583.70
  6. Step 6: Final answer
    x = 4,110.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.